22454110381 has 2 divisors, whose sum is σ = 22454110382. Its totient is φ = 22454110380.

The previous prime is 22454110379. The next prime is 22454110409. The reversal of 22454110381 is 18301145422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22429854756 + 24255625 = 149766^2 + 4925^2 .

It is a cyclic number.

It is not a de Polignac number, because 22454110381 - 2¹ = 22454110379 is a prime.

It is a super-2 number, since 2×22454110381² (a number of 22 digits) contains 22 as substring.

Together with 22454110379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22454110331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11227055190 + 11227055191.

It is an arithmetic number, because the mean of its divisors is an integer number (11227055191).

Almost surely, 2^22454110381 is an apocalyptic number.

It is an amenable number.

22454110381 is a deficient number, since it is larger than the sum of its proper divisors (1).

22454110381 is an equidigital number, since it uses as much as digits as its factorization.

22454110381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 22454110381 in words is "twenty-two billion, four hundred fifty-four million, one hundred ten thousand, three hundred eighty-one".